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From: Valdis.Kletnieks@vt.edu
To: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Jeff Garzik <jgarzik@pobox.com>,
	Michael Leun <lkml20100708@newton.leun.net>,
	linux-ide@vger.kernel.org,
	Linux PM mailing list <linux-pm@lists.linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Jian Peng <jipeng2005@gmail.com>
Subject: Re: [PATCH v2.6.38-rc7] Revert "libata: ahci_start_engine compliant to AHCI spec"
Date: Mon, 16 May 2011 13:02:17 -0400	[thread overview]
Message-ID: <20633.1305565337@localhost> (raw)
In-Reply-To: Your message of "Sat, 14 May 2011 12:28:04 +0200." <20110514102804.GB23665@htj.dyndns.org>

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On Sat, 14 May 2011 12:28:04 +0200, Tejun Heo said:
> This reverts commit 270dac35c26433d06a89150c51e75ca0181ca7e4.
> 
> The commits causes command timeouts on AC plug/unplug.  It isn't yet
> clear why.  As the commit was for a single rather obscure controller,
> revert the change for now.
> 
> The problem was reported and bisected by Gu Rui in bug#34692.
> 
>  https://bugzilla.kernel.org/show_bug.cgi?id=34692
> 
> Also, reported by Rafael and Michael in the following thread.
> 
>  http://thread.gmane.org/gmane.linux.kernel/1138771

This also fixes the issue I had with a 10-second pause on my Dell Latitude E6500
laptop at boot while detecting the CD/DVD drive.

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  parent reply	other threads:[~2011-05-16 17:03 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-11 22:25 AHCI driver problem on SB700/SB800 w/ Acer Ferrari One Rafael J. Wysocki
2011-05-13 12:37 ` AHCI driver problem on ICH (Re: AHCI driver problem on SB700/SB800 w/ Acer Ferrari One) Michael Leun
2011-05-13 16:56   ` Rafael J. Wysocki
2011-05-13 17:39     ` Tejun Heo
2011-05-13 19:54       ` Michael Leun
2011-05-13 20:20         ` Rafael J. Wysocki
2011-05-13 20:22       ` Rafael J. Wysocki
2011-05-13 20:44         ` Rafael J. Wysocki
2011-05-14  2:08           ` Robert Hancock
2011-05-14 10:18           ` Tejun Heo
2011-05-14 10:28             ` [PATCH v2.6.38-rc7] Revert "libata: ahci_start_engine compliant to AHCI spec" Tejun Heo
2011-05-14 17:47               ` Linus Torvalds
2011-05-14 18:49                 ` Jeff Garzik
     [not found]               ` <BANLkTik1nFKX1Eyov_o0Xd0rr01Si5hSqA@mail.gmail.com>
2011-05-15  9:25                 ` Rafael J. Wysocki
2011-05-15 12:20                   ` Michael Leun
2011-05-16 17:02               ` Valdis.Kletnieks [this message]
     [not found]                 ` <BANLkTin7NgUMXSVyKn6P0TCrFZ5uaaRL1w@mail.gmail.com>
2011-05-18 19:44                   ` Rafael J. Wysocki
     [not found] ` <BANLkTimZ9pe-FhkJYHTG1Jx8MUPrMHSFbA@mail.gmail.com>
     [not found]   ` <BANLkTim9_1Xt8oE4awbCO1iKUW96YUOv_A@mail.gmail.com>
2011-05-19 10:19     ` Rafael J. Wysocki
     [not found]       ` <BANLkTin6+2obBm=+5Kd5Za1Lq-n4UQ-STw@mail.gmail.com>
2011-05-19 21:32         ` Rafael J. Wysocki
     [not found]           ` <BANLkTikR2E2vb=9_ftLS4pcq0ysje7Rqyg@mail.gmail.com>
2011-05-19 22:03             ` Rafael J. Wysocki
2011-05-20 15:40     ` Valdis.Kletnieks
2011-05-20 15:43       ` Tejun Heo
2011-05-20 18:21         ` Jian Peng
     [not found]         ` <BANLkTi=iNjWsaYCJqP057FkhAXtab5nS=Q@mail.gmail.com>
2011-05-20 18:25           ` Valdis.Kletnieks
2011-05-22  2:00             ` Jian Peng
2011-05-23 12:13           ` Tejun Heo
2011-05-24  1:04             ` Jian Peng

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